CVE-2021-1490 MEDIUM

CVE-2021-1490: Cisco Web Security Appliance Cross-Site Scripting Vulnerability

Vendor Cisco
Product Cisco Web Security Appliance (WSA)
Weakness CWE-79 · XSS
Published May 6, 2021
Last update November 8, 2024

CVSS base score

4.7/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

A vulnerability in the web-based management interface of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface of an affected device. This vulnerability is due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit this vulnerability by persuading a user to retrieve a crafted file that contains malicious payload and upload it to the affected device. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Key dates

02Disclosure timeline

May 6, 2021 CVE published
November 8, 2024 Record updated